Burning-kiln.



PATBNTED JULY 30, 1907.

F. A. WEIGEL. BURNING KILN.

APPLICATION FILED JULY 3.. 1006.

3 SHEETS-SHEET 2.

INVENTOR m :Mw/@f1 JU A-r'ronnc'Y 110.861,1110I PATBNTED JULY 30,1907.

F. A. WBIGEL.

BURNINGVKILN.

APPLIOAIION FILED JULY 3, 190B.

' 3 SHEETS-SHEET 3- wl'rNESEEs: mvEN-lon ATTORNEY co., wAsmNaroN, n. c.

frm NaRRxs psrsns FREDERICK ALBIN WEIGEL, OF JOHNETTA, PENNSYLVANIA.

BURNING-KILN.

specification of Letters Patent.

Patented July 30,1907.

Application lled July 3,1906. Serial No. 324.591.

To all 'whom it 'may concern:

Be it known that I, FREDERICK ALBIN WEIGEL, a citizen of the UnitedStates, residing at Johnetta, in the county of Armstrong and State4 ofPennsylvania, have invented certain new and useful Improvements inBurning-Kilns; and I do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to the letters and figuresof reference marked thereon, which form a part of this specification.

My invention relates to a new and useful improvement in down draft kilnsfor the burning of brick, sewer pipe, or any article formed fromear-thor clay.

The primary object of my invention is the construction of a kiln inwhich a regular heat may be obtained throughout the entire burningchamber, thus being able to burn the contents to a uniform hardness andby means of the arrangement of Hues and draft passages being able todeflect the heat to any desired point.

Another feature of my invention is the method of drawing off the heatfrom the burning chamber and effecting a gradual cooling off of thecontents, also thel convenient and practical method of cleaning the kilnalter each burning process.

In the accompanying drawings, in three sheets, forming a part of thisspecification, I have shown several detailed views of my invention,Figure l being a longitudinal section on line 1 1 of Fig. 3. Fig. 2,Sheet 2, is a plan view showing draft flues leading to stack. Fig. 3,Sheet 3, is a cross sectional view on line 3 3 of Fig. l. Fig. 4, Sheetl, is a plan view of a section of the checker Work flooring before thenal layer of brick is put on. Fig. 5, Sheet 3, is a similar view showingone-half complete with the final layer of bricks. Fig. G, Sheet 2, is amodified form for connecting the circular draft passage with the stack.

Throughout the drawings the numeral l indicates the structural work ofwhat is familiar-ly known as a bee hive oven, or burning kiln. At statedintervals around the oven are arranged heating furnaces 2 and at oneside, any convenient distance from the oven, is a draft stack 3.

Extending from side to side of the oven is an arched passage-way 4 oneend built abruptly against the side of the oven and the opposite endcommunicating with an air-well, or man-hole 5. Communicating with thispassage-way 4, which it enters at right angles midway between the endsthereof, is a vflue 6 leading to the draft stack 3, and located in thisflue is a damper 6. Through the top of the arched passage-way 4 atstated intervals are arranged a plurality of openings 7 7.

nilt at right angles with the arched passage-way 4 between the openings7 7 and parallel with the flue 6, are the solid brick walls 8 8, Fig. 3,the ends thereof ending a short distance from the wall oi the oven,shown Iby dotted line in Fig. 2, leaving a circular passageway 9. v

The floor of each air space l0 formed between these 1 walls 8, isinclined from the circular passage-way 9 to where it communicates withthe openings 7 7 formed in the arched passage-way 4, allvexcept thecentral passage-way above the draft flue 6, which has a flat floor. Theobject of having these sloping floors is to facilitate the cleaning ofthe oven, as the scale from the burning brick and sand used in settinglayers of brick will sift through the floor into the passage-ways l()and can readily be drawn into the arched passage-way 4 and from therehauled away.

The walls 8 8, before referred to, are built to a predetermined anduniform height and upon these walls, and at right angles therewith, arecourses of brick ll-ll; leaving air spaces between each course. Uponthese courses of brick, and running at right angles therewith, is thefloor l2, which consists of a series of brick v laid in strips; leavinga space between each two strips,

A dividing wall 13 separates the ends of the circular passage-way 9, andeach end of said passage-way communicates with an opening 14 into theflue 6. Located near each end of each passage-way 9 are the dampers15-15. As a modified form of construction, the ends of this circularpassage-way 9 may be led directly into the stack, shown in Fig. 6.

Arranged in the walls of the oven at each side of the furnace 2, andadjacent thereto, are air passages 1G and 17 to prevent buckling orbulging of the walls of the oven; the passage-way 17 communicating withthe interior of the oven.

One or more doors 18 are arranged through the wall of the oven forfilling and removing brick.

In the operation of my improved burning kiln, the green brick, or otherclay material, is hauled into the oven through the door 18 and piledupon the iioor l2 in a well known manner. rl`he heat from the furnaces 2entering the oven is drawn down through this green material and uponreaching the floor l2 it escapes through the space between the strips ofbrick, and is then deflected to the right and left, passes down betweenthe supporting columns Il ll, thence into the passage-way l0 between thewalls 8 8, and is then drawn into the arched passage-way 4 through theopenings 7 7 and from there into the flues G; where it escapes out ofthe stack 3. It being a well known fact that atmospheric conditions havea great deal to do with the burning of brick and that often times oneside of the kiln will burn faster than the other. I have provided ameans whereby a portion of the heat in the kiln can be drawn to eitherside and thus by equalizing the same, cause a more even burning of thegreen material. This particular feature that I have providedv consistsin the circular passage-way 9, which acts as an auxiliary flue inaccomplishing the above result. As an example we will suppose that owingto certain atmospheric conditions one side of the kiln is discovered tobe hotter than the other, all that is required is for the man in chargeto raise the damper 15 in the Aend of the passage-way 9 at whatever sideof the kiln he desires to draw the heat. A portion of the heat, whichordinarily will rush toward the center of the kiln where the draft isstrongest, will thus be deflected to whatever side the operator desiresand where the burning has been slowest heretofore. In this manner thedistribution of heat in the kiln can be equalized to overcome any changein the atmospheric conditions.

In the cooling off process necessary before removing the bricks from thekiln, the ports 19 formed through the roof of the kiln are opened, thusadmitting cold air to the burning chamber. Cold air will also beadmitted through the passage-ways 17 formed in the wall of the kiln, andas an additional means for furnishing cold air to assist in carrying offthe heated atmosphere in the kiln, have provided the air well 5 whichcommunicates with the passage-way 4. In this manner a sufficient volumeof cold air can be drawn into the kiln to insure the rapid and efficientcooling off of the burned material. The air well 5 also acts as aman-hole in obtaining access to the passage way 4 when it becomesnecessary to clean the kiln of the scale and sand, but is kept coveredduring the burning process.

An additional air well can be provided at the opposite end of thepassage way 4 in case the conditions and nature of the constructionwould Warrent the same being done.

Other minor changes in the detailed form of construction may also bemade Without in any manner changing or departing from my original idea.

Having therefore fully described and shown my'invention, what I claim asnew, and desire to secure by Letters Patent, is:

1. In a device of the character described, a suitable burning kiln; acovered passage-way extending from side to side of the kiln; means,communicating with said passage-way, for drawing cold air into the kilnand for cleaning said kiln; a draft ilue intersecting said passagewayand extending to a draft stack; a damper in said flue;

and. a plurality of openings formed in said passage-Way; as, a'nd for,the purpose set forth.

2. In a device of the character described, a suitable burning kiln; acovered passage-way extending from side to side ot' the kiln andcommunicating with an air well; a draft flue intersecting saidpassage-way and extending to a draft stack; a damper in said nue; aplurality of openings formed in said passage-way; a plurality ofsupporting walls or arches extending across at right angles with thecovered passage-way and between the openings formed therein; and airspaces between each two walls communicatingwith the openings through thecovered passage-way; as, and for, the purpose set forth.

ln a device of the character described, a suitable burning kiln; acovered passage-way extending from side to side of the kiln andcommunicating with an air well; a draft flue intersecting saidpassage-way vand extending` to a draft stack; a damper in said flue; aplurality of openings formed in said passage-way; a plurality ofsupporting walls extending across at right angles with the coveredpassageway and between the openings formed therein `air spaces betweeneach two walls communicating with the openings through the kpassage-way,the bottoms of which incline toward said passage-way; and a circularauxiliary flue extending around the kiln, communicating with each airspace and draft, flue, the ends of said auxiliary flue being separatedby a dividing wall and having damper means for regulating the drafttherethrough; as, and for, the purpose set forth.v

4. ln a device of the character described, a suitable burning kiln; acovered passage-way extending from side to side of the kiln andcommunicating with an air Well; a draft flue intersecting saidpassage-way and extending to a draft stack; a damper in said flue; aplurality of openings formed in said passage-way; a plurality ofsupporting walls extending across at right angles with the coveredpassage-way and between the openings foi-med therein; air spaces betweeneach two walls communicating with the openings through the passage-way,the bottoms of which incline toward said passage-way; a circularauxiliary i'lue extending around the kiln communicating with each a'irspace and draft flue, the ends of said auxiliary flue being separated bya dividing wall and having damper means for regulating the drafttherethrough; courses of brick resting on the parallel walls andsupporting a checker work iiooring; and a plurality of air passagesformed in the wall of the kiln; as, and for, the purpose set forth.

In testimony whereof, I aix my signature, in presence of two witnesses.

FREDERICK ALBIN WEIGEL.

Witnesses z JOHN LnNNOx, C. S. l-InLiuiCx.

